Open Source Privacy Tool - Portmaster

Portmaster is a free and open-source application firewall designed to enhance user privacy by managing and monitoring network activity on Windows and Linux desktops. It allows users to regain control over their network connections and block unwanted tracking and malware.

Key features:

• Monitor All Network Activity - Track and manage all network connections.
• Full Control - Customize settings for individual applications.
• Automatically Block Trackers & Malware - Built-in protection against common threats.
• Secure DNS - Support for DNS over HTTPS and DNS over TLS.
• Network History - Record and search past network connections.
• Bandwidth Visibility - Monitor bandwidth usage per app and connection.
• SPN - Safing Privacy Network - A privacy network that uses onion encryption for enhanced anonymity.

Portmaster is developed in Austria and focuses on providing a user-friendly experience while ensuring that all operations remain local to the user's device.